HGUC: #215 AMS-123X-X Moon Gundam 1/144 scale model kit.
From the Universal Century series.
 
The Moon Gundam, a suit that was part of the development lineage to the infamous Sazabi is fully represented with its moon shaped Psycho Plate. The Psycho Plate can be unfurled by unfolding the backpack arm and can be separated as well as combined with the mobile suit. Articulation gimmicks in the knee showcase immense mechanical detail.
 
Assemble required. 
No glue is required for assembly 
Hobby nippers are required (Sold separately) to remove parts from runners.